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/*
* listbox.c - scrollable listbox management module
*
* Written by Gerard Paul Java
* Copyright (c) Gerard Paul Java 2001
*/
#include <curses.h>
#include <panel.h>
#include <string.h>
#include <stdlib.h>
#include "winops.h"
#include "labels.h"
#include "listbox.h"
#include "msgboxes.h"
void tx_init_listbox(struct scroll_list *list, int width, int height,
int startx, int starty,
int mainattr, int borderattr, int selectattr,
int keyattr)
{
bzero(list, sizeof(struct scroll_list));
list->borderwin = newwin(height, width, starty, startx);
list->borderpanel = new_panel(list->borderwin);
wattrset(list->borderwin, borderattr);
tx_box(list->borderwin, ACS_VLINE, ACS_HLINE);
list->win = newwin(height - 2, width - 2, starty + 1, startx + 1);
list->panel = new_panel(list->win);
wattrset(list->win, mainattr);
tx_colorwin(list->win);
list->mainattr = mainattr;
list->selectattr = selectattr;
list->height = height;
list->width = width;
list->keyattr = keyattr;
tx_stdwinset(list->win);
scrollok(list->win, 0);
}
void tx_set_listbox_title(struct scroll_list *list, char *text, int x)
{
mvwprintw(list->borderwin, 0, x, " %s ", text);
}
void tx_add_list_entry(struct scroll_list *list, char *node, char *text)
{
struct textlisttype *ptmp;
ptmp = malloc(sizeof(struct textlisttype));
bzero(ptmp, sizeof(struct textlisttype));
strncpy(ptmp->text, text, MAX_TEXT_LENGTH);
ptmp->nodeptr = node;
if (list->textlist == NULL) {
list->textlist = ptmp;
ptmp->prev_entry = NULL;
} else {
list->texttail->next_entry = ptmp;
ptmp->prev_entry = list->texttail;
}
list->texttail = ptmp;
ptmp->next_entry = NULL;
}
void tx_show_listbox(struct scroll_list *list)
{
int i = 0;
struct textlisttype *tptr = list->textlist;
while ((i <= list->height - 3) && (tptr != NULL)) {
mvwprintw(list->win, i, 1, tptr->text);
tptr = tptr->next_entry;
i++;
}
update_panels();
doupdate();
}
void tx_operate_listbox(struct scroll_list *list,
int *keystroke,
int *aborted)
{
int ch;
int exitloop = 0;
int row = 0;
char padding[MAX_TEXT_LENGTH];
char sp_buf[10];
if (list->textlist == NULL) {
tx_errbox("No list entries", ANYKEY_MSG, &ch);
*aborted = 1;
return;
}
list->textptr = list->textlist;
tx_listkeyhelp(list->mainattr, list->keyattr);
update_panels();
doupdate();
while (!exitloop) {
snprintf(sp_buf, 9, "%%%dc", list->width - strlen(list->textptr->text) - 3);
snprintf(padding, MAX_TEXT_LENGTH - 1, sp_buf, ' ');
wattrset(list->win, list->selectattr);
mvwprintw(list->win, row, 0, " %s%s", list->textptr->text, padding);
ch = wgetch(list->win);
wattrset(list->win, list->mainattr);
mvwprintw(list->win, row, 0, " %s%s", list->textptr->text, padding);
switch(ch) {
case KEY_UP:
if (list->textptr == NULL)
continue;
if (list->textptr->prev_entry != NULL) {
if (row == 0) {
scrollok(list->win, 1);
wscrl(list->win, -1);
scrollok(list->win, 0);
} else
row--;
list->textptr = list->textptr->prev_entry;
}
break;
case KEY_DOWN:
if (list->textptr == NULL)
continue;
if (list->textptr->next_entry != NULL) {
if (row == list->height - 3) {
scrollok(list->win, 1);
wscrl(list->win, 1);
scrollok(list->win, 0);
} else
row++;
list->textptr = list->textptr->next_entry;
}
break;
case 13:
*aborted = 0;
exitloop = 1;
break;
case 27:
case 'x':
case 'X':
case 24:
*aborted = 1;
exitloop = 1;
case 12:
case 'l':
case 'L':
tx_refresh_screen();
break;
}
}
*keystroke = ch;
}
void tx_hide_listbox(struct scroll_list *list)
{
hide_panel(list->panel);
hide_panel(list->borderpanel);
update_panels();
doupdate();
}
void tx_unhide_listbox(struct scroll_list *list)
{
show_panel(list->panel);
show_panel(list->panel);
update_panels();
doupdate();
}
void tx_close_listbox(struct scroll_list *list)
{
del_panel(list->panel);
del_panel(list->borderpanel);
delwin(list->win);
delwin(list->borderwin);
update_panels();
doupdate();
}
void tx_destroy_list(struct scroll_list *list)
{
struct textlisttype *ttmp = list->textlist;
struct textlisttype *ctmp;
if (ttmp != NULL) {
ctmp = ttmp->next_entry;
while (ttmp != NULL) {
free(ttmp);
ttmp = ctmp;
if (ctmp != NULL)
ctmp = ctmp->next_entry;
}
}
}
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